Reliable Residual Current Circuit Breaker for Electrical Safety | Merhein

Reliable Residual Current Circuit Breaker for Electrical Safety | Merhein

Technical Specifications

Overview

KNL1 Series Residual Current Circuit Breaker

The KNL1 series is a high-performance residual current circuit breaker designed to safeguard electrical systems against earth leakage faults. Suitable for AC 50/60Hz lines, it provides rapid power disconnection to prevent electric shock and accidents in industrial, commercial, and residential environments. This device is engineered for reliability, complying with international standards including GB 16916.1 and IEC/EN 61008.1.

Electrical Ratings

Rated Current

63
80
100

Rated Working Voltage: 240V (2 Pole) / 415V (4 Pole)
Rated Frequency: 50/60Hz

Performance Metrics

Key Performance Indicators

1,500 A

Making/Breaking Capacity

3,000 A

Short-Circuit Current

10,000 cycles

Mechanical Life

4,000 cycles

Electrical Life

Sensibility Types: A TypeAC Type
Max Operating Time: ≤0.3s (at In), ≤0.04s (at 5In)

Technical Specifications

Rated Residual Operating Current

0.03
0.1
0.3
0.5

Rated Residual Non-Operating Current

0.015
0.05
0.15
0.25

Pole Number

2P4P

Standards Compliance: GB 16916.1IEC/EN 61008.1

Circuit diagram and schematic for the residual current circuit breaker — Schematic representation of the zero-sequence current transformer and electromagnetic tripping mechanism.

Dimensions

Dimensions Table

Dimension	Value
Height	91
Width	72
Depth	75

Technical diagram showing the physical dimensions of the circuit breaker — Dimensional drawing illustrating the height, width, and depth of the KNL1 series unit.

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